tracing: Fix regression in printk_formats file

The fix to fix the printk_formats of modules broke the
printk_formats of trace_printks in the kernel.

The update of what to show via the seq_file was only updated
if the passed in fmt was NULL, which happens only on the first
iteration. The result was showing the first format every time
instead of iterating through the available formats.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

diff --git a/kernel/trace/trace_printk.c b/kernel/trace/trace_printk.c
index dff763b7baf172d9d7b90c8f0dddc0427a83a1c4..1f06468a10d7a65ad8c0bffa8e13c0eaf44a8ad4 100644 (file)
--- a/kernel/trace/trace_printk.c
+++ b/kernel/trace/trace_printk.c
@@ -240,13 +240,10 @@ static const char **find_next(void *v, loff_t *pos)
        const char **fmt = v;
        int start_index;
 
-       if (!fmt)
-               fmt = __start___trace_bprintk_fmt + *pos;
-
        start_index = __stop___trace_bprintk_fmt - __start___trace_bprintk_fmt;
 
        if (*pos < start_index)
-               return fmt;
+               return __start___trace_bprintk_fmt + *pos;
 
        return find_next_mod_format(start_index, v, fmt, pos);
 }